Thermal stability up to 800 A degrees C of a Ni-4 wt% Al nanocomposite

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	Thermal stability up to 800 A degrees C of a Ni-4 wt% Al nanocomposite
	L. Zheng; X. Peng; F. Wang
	2012
发表期刊	Journal of Materials Science
ISSN	0022-2461
卷号	47 期号:22 页码:7759-7763
摘要	The thermal stability up to 800 A degrees C of a nanocrystalline (NC) Ni (mean grain size similar to 25 nm) with similar to 4 wt% Al dispersed in the form of similar to 160-nm-sized particles, which was fabricated by co-electrodeposition from a nickel sulfate bath, has been investigated using differential scanning calorimetry (DSC), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results showed that microstructural evolution of the composite is temperature dependent, i.e., normal grain growth of the NC Ni, similar to 0.6 wt% Al solution into the Ni matrix and direct reaction between Al and Ni to form Ni3Al precipitates occurred at similar to 290, similar to 325 and similar to 575 A degrees C, respectively. The distribution of Al in Ni matrix with temperature is fully discussed. A DSC scanning up to 800 A degrees C of a nanocrystalline Ni matrix dispersing similar to 4 wt% Al particles (mean size: 160 nm) shows the particles did not significantly affect the normal grain growth of NC Ni and they have been converted into Ni3Al and Al solute atoms.
部门归属	[zheng, l.; peng, x.; wang, f.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;peng, x (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;xpeng@imr.ac.cn
关键词	Electrodeposited Composite Coatings Nanocrystalline Nickel Oxidation-kinetics 800-degrees-c Morphology Crystals Alloy Film
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60498
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Zheng,X. Peng,F. Wang. Thermal stability up to 800 A degrees C of a Ni-4 wt% Al nanocomposite[J]. Journal of Materials Science,2012,47(22):7759-7763.
APA	L. Zheng,X. Peng,&F. Wang.(2012).Thermal stability up to 800 A degrees C of a Ni-4 wt% Al nanocomposite.Journal of Materials Science,47(22),7759-7763.
MLA	L. Zheng,et al."Thermal stability up to 800 A degrees C of a Ni-4 wt% Al nanocomposite".Journal of Materials Science 47.22(2012):7759-7763.